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为了减轻内燃机的振动、延长使用寿命,要求安装在发动机上的同一组连杆的重量和重心位置误差不超过一定的范围。但是,锻造而成的连杆在机械加工以后的重量不会相同,其重心位置也不会恰好一致。所以须将加工完成后的连杆进行称重和去重,将重心位置和重量校正在允许的公差范围内。连杆去重前的称重,大批量连杆生产厂家是在连杆称重、去重自动线或高效率的专用设
In order to reduce the vibration of the internal combustion engine and prolong the service life, it is required that the weight and center of gravity positions of the same set of connecting rods installed on the engine do not exceed a certain range. However, the forged linkages will not have the same weight after machining and their center of gravity will not coincide exactly. Therefore, the finished connecting rod must be weighed and de-weighted to correct the position and weight of the center of gravity within the allowable tolerance. Connecting rod to weigh before weighing, high-volume connecting rod manufacturer is weighing in the connecting rod, to heavy automatic line or high-efficiency dedicated